annotate general/arrutils/foldcols.m @ 37:beb8a3f4a345
Renamed prefs to options throughout.
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samer |
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Mon, 28 Jan 2013 10:52:11 +0000 |
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1 % foldcols - fold from left combinator for columns of an array
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2 %
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3 % foldcols :;
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4 % (A,[[N]]->A) ~'folding function',
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5 % A ~'initial value',
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6 % [[N,L]] ~'data to scan, sequence of length L'
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7 % -> A.
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8
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9 function y=foldcols(f,y,X)
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10 for i=1:size(X,2), y=f(y,X(:,i)); end
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11 end
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12
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13
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